Audi Models
2013-’16 TT
2015-’16 A3, Q3
Symptoms:
On the models listed, the all-wheel-drive does not work or the EPC warning light is illuminated. The technician will find there is an internal leak in the hydraulic pump.
Correction:
Replace the pump with the improved part OCQ598549, fill the fluid in the case and recalibrate the differential with a scan tool.
Courtesy of Mitchell 1.
The system provides great ride & handling, but it can be complicated to service if you do not have the right training.
Mercedes-Benz uses two different adjustable suspension systems in its vehicles – Airmatic and Active Body Control (ABC). Airmatic, as the name implies, is its air suspension system which we discussed back in April of this year. ABC uses hydraulic fluid at tremendous pressures to actively change the stiffness of the springs inside the shock assemblies, changing vehicle dynamics and ride height. This can be done automatically based on sensor inputs and module programming, or at the push of a button located near the shifter.
Technical Service Bulletins can be valuable in helping solve vehicle problems. But sometimes, it takes multiple TSBs to find a pattern failure or the “root cause” of a problem. In the case of the Audi/VW 2.0L Fuel Stratified Injection (FSI) engine introduced in 2006, three problems related to engine carbon and fuel issues are connected
Taking a guess can get very pricey if you can’t return the part.
Models: F97 X3 M F98 X4 M G01 X3 G02 X4 G20 3-Series SITUATION After replacing the microfilter during a previous service, the customer notices that the ventilation system airflow rate is noticeably less. This leads to perceived lower cooling power. The customer may also notice that external odors enter the vehicle. Related Articles –
Follow along to learn more about carbon deposits.
The April issue includes technical and management content and is free to download.
The March issue includes technical and management content and is free to download.
Let’s take a closer look at this unique water pump, how to replace it efficiently and what other components should be replaced along with it.
February’s issue includes technical and management content and is free to download.
